What do you value about nature? That's what we want you to show us, using a photograph - be it a species of wildlife, a particular landscape or one of the many 'ecosystem services' that nature provides to us for free, such as providing clean air and water.

Former chief scientist Sir David King says of our photo-sharing project:

Providing solutions for the future while at the same time protecting the future is paramount and I am delighted that the Smith School of Enterprise and the Environment is working with the Guardian in launching a display of photographs from readers that capture the greatest moments of nature and biodiversity.